package cn.xinjiu.reggie.common;

import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.reflection.MetaObject;
import org.springframework.stereotype.Component;

import java.time.LocalDateTime;

/**
 * Created by xinchen on 2022/7/4
 *
 * @Description : 自定义元数据处理器
 */
@Component
@Slf4j
public class MyMetaObjectHandler implements MetaObjectHandler {

    /**
     * @param metaObject
     * @return
     * @description 插入操作 自动填充
     */
    @Override
    public void insertFill(MetaObject metaObject) {
        log.info("公共字段字段填充[insert]...");
        log.info(metaObject.toString());

        metaObject.setValue("createTime", LocalDateTime.now());
        metaObject.setValue("updateTime", LocalDateTime.now());
        metaObject.setValue("createUser", BaseContext.getCurrentId());
        metaObject.setValue("updateUser", BaseContext.getCurrentId());
    }

    /**
     * @param metaObject
     * @return
     * @description 更新操作 自动填充
     *      使用ThreadLocal获取当前登录用户id，使用线程作为作用域
     */
    @Override
    public void updateFill(MetaObject metaObject) {
        log.info("公共字段字段填充[update]...");
        log.info(metaObject.toString());

        long id = Thread.currentThread().getId();
        log.info("当前线程id为{}", id);

        metaObject.setValue("updateTime", LocalDateTime.now());
        metaObject.setValue("updateUser", BaseContext.getCurrentId());
    }
}
